老师说服学生时，对理解能力较强的高年级学生，教师最好（） ["不要提供证据","提供正反证据","提供正面证据","提供反面证据"]
Which statement is true about the comparison of voice traffic with video traffic？（） [" Video conferencing traffic tends to be much more bursty in nature and is more prone to have an impact on other traffic flows."," Latency requirements are less stringent for video traffic than for voice traffic."," Video traffic is less sensitive to dropped packets than for voice traffic."," Video traffic requires the retransmission capabilities of TCP whereas voice uses UDP."," Voice traffic tends to be much more bursty in nature and is more prone to have an impact on other traffic flows."," Voice traffic requires the retransmission capabilities of TCP whereas video uses UDP."]
8种必须的aa有哪些？
工程定额计价法的步骤中，计算完成工程量之后紧接着的工作是（） ["熟悉图纸和现场","编制工料分析表","套定额单价","费用计算"]
简述布鲁姆的目标分类理论与加涅的学习结果分类理论的异同。
生育率的微观经济理论
